This study will evaluate the impact of Xiapex treatment on the range of motion (ROM) of the affected fingers and the patient and physician reported treatment satisfaction and disease severity and their relation to ROM. Recovery to normal activities, recovery time (How long overall, time to use hand, time to return to work or daily activities, amount of work or daily activity time missed or reduced and affects on productivity and daily activities) will be assessed via patient diary. Use of concomitant analgesic medications will be recorded and total healthcare resource utilization (HCRU).